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Project NameApprox
Price
(USD)		Hardware Assembly ProcessSoftware Setup ProcessUsage ComplexityConnectivity OptionsFirmware ProtectionExtra Hardware ProtectionProject StatusHardware & Software PlatformUnderlying Software LibraryWebsite
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SeedSigner$70 (Average)Press Fit BoardsMicroSD ImageMediumQR CodesNoneNo
Stable, active development
Linux on ArmEmbit
https://seedsigner.com/
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SeedSigner (Satochip + ERT)$90 (Average)Press Fit BoardsMicroSD ImageMediumQR CodesNone
Secure Element Seed Storage
Beta, active development
Linux on ArmEmbit
https://github.com/3rdIteration/seedsigner
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Krux
$50 (Yahboom K210)
Ready-MadeProgram Firmware ImageAdvanced
QR Codes, MicroSD
"Flash Hash" Tamper Check
No
Stable, active development
MicroPython on K210
Embit
https://selfcustody.github.io/krux/
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Specter DIY
$100 (Disco + QR Scanner)
Press Fit BoardsDrag-And-Drop FileAdvanced
QR Codes, MicroSD, USB
Secure Boot (Optional)
No
Stable, maintenance
MicroPython on STM32
Embit
https://github.com/cryptoadvance/specter-diy
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Specter DIY (Shield)
$105 (Disco + QR + Shield Lite + Smartcard)
Press Fit BoardsDrag-And-Drop FileAdvanced
QR Codes, MicroSD, USB
Secure Boot (Optional)
Secure Element Seed Storage
Stable, maintenance
MicroPython on STM32
Embit
https://github.com/cryptoadvance/specter-diy
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Satochip$20 (J3R180)Ready-MadeFlash FirmwareMedium
Contact-Reader, NFC
Smartcard Lock (Optional)
Secure Element for Storage and Operation
Stable, maintenance (Retail)
JavacardSatochip
https://satochip.io/
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Trezor One$20SolderingFlash FirmwareEasyUSB
Secure Boot (Optional)
No
Stable, maintenance (Retail)
C on STM32Trezorhttps://trezor.io/
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Keepkey$20SolderingFlash FirmwareEasyUSB
Secure Boot (Optional)
No
Stable, maintenance (Retail)
C on STM32Trezor
https://www.keepkey.com/
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piTrezor$55Press Fit BoardsMicroSD ImageEasyUSBNoneNo
Stable, maintenance
Linux on ArmTrezor
https://www.pitrezor.com/
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KeyFlint
$40 (CrowPanel ESP Terminal + Serial Barcode Scanner)
Press Fit BoardsBuild from SourceMedumQR CodesNoneNo
Alpha, development
Arduino on ESP32
uBitcoin
https://github.com/aaronwu2017/KeyFlint
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Status Keycard$20 (J3R180)Ready-MadeFlash FirmwareEasy
Contact-Reader, NFC
Smartcard Lock
Secure Element for Storage and Operation
Stable, maintenance
JavacardKeycard
https://github.com/keycard-tech/status-keycard
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Jade
$20 (M5StickC-Plus, no camera)
Ready-MadeBrowser BasedEasy
QR Codes, USB, Bluetooth
Secure Boot + Flash Encryption (Optional)
Encrypted via Blind Pinserver
Stable, maintenance (Retail)
C on ESP32Libwally
https://blockstream.com/jade/
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Jade Plus
$46 (T-Display S3 Pro Camera)
Ready-MadeBrowser BasedEasy
QR Codes, USB, Bluetooth
Secure Boot + Flash Encryption (Optional)
Encrypted via Blind Pinserver
Stable, maintenance (Retail)
C on ESP32-S3Libwally
https://blockstream.com/jade/
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